Milk-bottle



F. GRANT.

MILK BOTTLE.

APPLICATION FILED JAN. n, 1916. RENEWED APR. 19.1919.

1 3% 1 29 Patented July 12, 11921,

WITNESSES.- IN VEN TOR,

- Eula/7: Fin/2i, 530 7 A TTOR NE Y.

FRANK GRANT, OF WESTZFIELE), IVIASSACHUSETTS.

MILK-BOTTLE.

Application filed January 17, 1916, Serial No. 72,410. Renewed April 19,1918,

To all whom it may concern:

3e it known that I, FRANK GKLXNT, a citizen of the United States ofAmerica, and resident of l Vestfield, in the county of l lampdeu andState of h lassaehusetts, have invented certain new and usefulImproven'ients in Milk-Bottles, of which the following is a full, -lear,and exact des-ription.

T his invention relates to a closure for the mouth of a milk or creambottle,- having for its object the provision of means whereb the bottlemaybe readily and quickly flllEG, and as readily discharged of part orall its contents; the closure at all times being retained an adjunct ofthe bottle for replacement after removal, and to he returned, one withthe bottle, to the dairy for the refilling of the receptacle.

The improved mi k bottle is described and the adranta s thereofrei'idered apparent in conjun tion with the am'oinpanying drawings, andthe appended claims particularly define tiie invention.

In the drawings the figure is a sectional. view vertically and centrallythrough the bottle and its closure.

Referring to the drawing, the mouth portion of the bottle at its upperend is made with an outwardly projecting annular bead or flange aforming a shoulder b at its under side, and below such shoulder thebottle neck is preferably upwardly tapered.

Below the said shoulder a collar (Z is provided, the game being of anon-vitreous material, and presents by its outer surface an upwariillytapered formation, and such surface is of as great, or slightly greaterprominence. diametrically than the periphery of the flange a.

7'' represents a cap including a flange f -which is internally taperedmore or less nearly corresponding to the taper of the collar (Z and fora binding frictional engagement about the latter.

Said cap 7 has a central opening in its top surrounded by an externallyt pered upstanding annular flange or spout 1.; and 2' represents asupplemental cap having the depending rim portion 7'? formed internallydownwardly flaring to more or less nearly correspond to the taper of thepart 7L, and to be frictionally engaged therewith or bound thereon.

The said collar may be composed of hard rubber, fiber or othernon-vitreous material suitable for the purpose, applied about theSpecification of Letters Patent.

Serial No. 291,411.

neck under, and to be retained by the shoulder Z) in a plastic conditionand raused or allowed to i'lardcn, or it may be a band of elastic rubberstretched over the flange a and allowed to ret 'a to hug the l itl'lenoel: under the shoulder and to partake of the tapered shape by reasonof itil confornuition to the upward convergence of the bottle ne 2k (1.

ll hen the bottle is to be filled, or cleansed the main cap 7 isremoved, an 'l the bottle when sent to the customer is c oied by themain cap, and tie spout the latter is closed by the supplemental cap 6.

The user of the eonteuts of he bottle will generally only remove thesupplemental cap, pouring through the spout, or flange surroundingcentral opening in the main cap; and unused portions of the milk, etc,may be protected from deterioration by the replacement of the cap 2'. 0fcourse for quiet: eni 'itying of all of the contents of the bottle themain cap f and the supplemental cap 7' as one therewith may be removed.

ln the drawing a collar (Z surrounding the mouth portion of the bottleis formed step shaped, that is it is made with a portion (Z extendingupwardly above the bottle mouth, having the shoulder (Z to rest on themouth edge, and having the inner wall of the extension (Z continuouswith the surface the bottle within its neck. The outer surfa-z e of thecollar at its portion surrounding the bottle mouth has the slightlytapered formation as shown 1]" while the extension has its outersidemore abruptly beveled as represented at (Z converging to the innersurface of the extension to form a sharp pouring edge.

The closure for the so formed bottle may be a single cap having theinternal surface of its rim or depending flange slightly tapered. forthe frictional binding engagement with the correspondingly tapered outersurface d of the collar.

The cap may close onto the sharp pouring edge formed by the upperextremity of the extension, preventing in case the bottle is laid on itsside, the liquid from flowing around over the outer beveled surface d ofthe extension and thence to run down the side of the bottle when the capis removed.

The cap may be as provided inside of its top with an elastic packingring m embedded in an annular groove therefor. The packing ring mengages the beveled or sharp edge of the extension d whereby said edgeWlll press into the yielding packing ring, as

shown in Fig. 2 and form a perfect seal.

Between the beveled face al there is an annular air space a; when thefilled bottle is placed in cold storage the air in this space contracts,thus forming a partial vacuum on one side the sealing connection betweenthe spout extension and the cap. This arrangement tends to promoteadhesion of the top of the cap to the top of the bottle, and to hold thecap snugly sealed on the downwardly widened tapered collar cl c Themeans for the stoppering of the bet tles made as above described andshown is suchthat the bottles may be laid on their sides in arefrigerator or hamper without liability of leakage to the exterior ofthe receptacles or ofany part of their closures.

' 1. A bottle closure consisting of a bottle having a neck provided withan external shoulder a plastic collar melded on. the neck and ha 'ing anextensioi'i fitting over the shouldergsaid extension having a beveledouter surface providing a sharp terminal edge for said collar, the outersurface of said collar being tapered, the narrower end of said taperedcollar being uppermost, a cap having a pendant flange adapted to snuglyfit the tapered outer surface of said collar, the top of said cap havinga circular havin a relativel sharp ed 'e extendin h l a a:

from theneck thereof, a cap having a pendant l'lange adapted to embracethe edge and neck and provided with a circular groove in its topportion, and yielding packing ring in said groove to engage the sharpedge of said neck, the upper portion of the neck being externallybeveled whereby an air space is provided between said beveled neckportion and the pendant flange of the cap adapted 'to permit of apartial"vacuum against the joint formed by said sharp edge and thegasket, the cap extending below and inclosing said shoulder andbeingfrietionally held in place. .7

Signed by me at Springfield, Mass, in presence of two subscribingwltnesses.

FRANK GRANT.

\Vitnesses M. S. BnLLows, G. R. DRISCOLL.

